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Axial PD fat sat

Massive joint effusion with layering blood products. No loose intra-articular body identified. The fibres of the anterior cruciate ligament are intact although there is oedema within it indicating a low-grade strain injury. The posterior cruciate ligament is intact.

Horizontal cleavage tear the posterior horn medial meniscus, with a small associated flipped fragment in the intercondylar notch. The remainder of the meniscus is intact. The medial collateral ligament is intact, elevated by the joint effusion. Cartilage of the medial compartment is normal. Acute subchondral oedema within the anterior non-weightbearing aspect of the medial femoral condyle, related to the patellar injury.

The lateral meniscus is intact. The lateral collateral ligament is intact although it demonstrates hypointense PD signal in keeping with a low-grade strain injury. Cartilage of the lateral compartment is normal. Focal cortical oedema in the anterior non-weightbearing lateral tibial plateau. Small focus of corresponding subchondral oedema in the lateral aspect of the lateral femoral condyle. The popliteus tendon and posterolateral corner structures are intact, although there is non-specific oedema between the muscles in the lateral calf.